package com.zretc.letter.dao;

import org.apache.ibatis.annotations.Param;

public interface LetterUserMapper {
    Integer deleteSingleRecord(@Param("userId")Integer userId, @Param("letterId")Integer letterId);
    Integer updateIsReadToTrue(@Param("userId")Integer userId, @Param("letterId")Integer letterId);
    Integer addRecordsJoinUser(Integer letterId);
    Integer addSingleRecord(@Param("userId")Integer userId, @Param("letterId")Integer letterId);

}
